High-voltage power distribution cabinet pressure detection device

Abstract

The utility model discloses a pressure detection device for a high-voltage power distribution cabinet, which relates to the technical field of pressure detection devices, and comprises a barometer consisting of a gauge outfit and a connecting pipe, the outer sides of the gauge outfit and the connecting pipe are provided with an installation assembly, and the installation assembly is used for realizing the installation and fixation of the barometer; the mounting assembly comprises a connecting unit and a rotating unit; the connecting unit is used for being connected with an air pressure detection port in the gas-insulated switchgear, so that the air pressure gauge is installed and fixed; the rotating unit is used for rotating at the position close to the meter head to provide rotating force for threaded connection of the connecting unit. According to the utility model, the barometer can be conveniently disassembled and assembled by arranging the installation assembly, compared with a traditional installation mode of directly rotating the screw sleeve, the position of the rotating sleeve is close to the meter head, namely the rotating sleeve is close to the opening of the barometer, the space where the rotating sleeve is located is larger, smooth rotating operation can be realized, and the installation efficiency is improved. Therefore, the dismounting convenience of the barometer is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure detection device technical field, specifically a kind of high voltage switchgear pressure detection device. BACKGROUND

[0002] Gas-filled switchgear, also known as gas-filled metal-enclosed switchgear, is a kind of high voltage switchgear. It uses inert gases such as sulfur hexafluoride as insulation and arc-extinguishing medium, and seals circuit breakers, transformers, arresters and other components in a metal cabinet to form a complete electrical isolation system. Gas-filled switchgear has electrical isolation, control and protection functions, and is suitable for three-phase alternating current high voltage distribution systems with a frequency of 50 Hz and a voltage of 12 kV or below, and is used for receiving and distributing high voltage power.

[0003] Gas pressure detection of gas-filled switchgear is crucial to ensure its safe and stable operation. Gas-filled switchgear usually comes with mechanical or electronic pressure gauges that can directly read gas pressure values. In addition, portable precision pressure gauges can be used for calibration or auxiliary measurement, such as sulfur hexafluoride leak detectors, to detect whether there is gas leakage in the gas-filled switchgear.

[0004] The existing high pressure gas-filled switchgear pressure gauge connector is installed in the high pressure gas-filled switchgear through a hexagonal nut. The pressure gauge needs to be disassembled for maintenance and replacement. However, due to the small space inside the gas-filled switchgear, it is not convenient to disassemble and assemble with ordinary wrenches. If not handled properly, it may cause damage to the interface threads, leading to gas leakage in the gas-filled switchgear. Therefore, a high voltage switchgear pressure detection device is provided. SUMMARY

[0005] The utility model aims at solving the problems in the above background, and provides a high voltage switchgear pressure detection device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high voltage switchgear pressure detection device, comprising a pressure gauge composed of a gauge head and a connecting pipe, the connecting pipe is fixed to the rear end of the gauge head, the gauge head and the connecting pipe are provided with a mounting assembly on the outside, and the mounting assembly is used to realize the mounting and fixation of the pressure gauge.

[0007] The mounting assembly comprises a connecting unit and a rotating unit.

[0008] The connecting unit is used to connect with the gas pressure detection port on the gas-filled switchgear, so as to realize the mounting and fixation of the pressure gauge.

[0009] The rotating unit is used to rotate near the gauge head to provide rotating force for the threaded connection of the connecting unit.

[0010] As a further scheme of the utility model: the connecting unit includes a screw sleeve, the screw sleeve is sleeved on the outer side of the rear end of the connecting pipe, after the rear end of the connecting pipe is inserted into the inner side of the air pressure detection port on the gas-filled cabinet, the screw sleeve is screwed with the external thread part of the air pressure detection port on the gas-filled cabinet, the fixing of the connecting pipe and the air pressure detection port on the gas-filled cabinet is realized.

[0011] As a further scheme of the utility model: the rotating unit includes a polygon sleeve, a rotating sleeve and a butt joint sleeve;

[0012] The rotating sleeve is sleeved on the outer side of the meter head and is fixedly connected with the butt joint sleeve;

[0013] The polygon sleeve is fixed to the front end of the screw sleeve and is sleeved on the outer side of the butt joint sleeve;

[0014] The rotating sleeve or the butt joint sleeve is rotated for synchronously driving the polygon sleeve and the screw sleeve to rotate.

[0015] As a further scheme of the utility model: the rotating unit further includes a limiting ring block, the limiting ring block is fixed to the outer side of the butt joint sleeve and is distributed at the front end of the polygon sleeve, and a space distance exists between the limiting ring block and the rotating sleeve.

[0016] As a further scheme of the utility model: the rotating unit further includes a spring, the spring is distributed on the inner side of the polygon sleeve and is sleeved on the outer side of the connecting pipe, and the two ends of the spring are respectively attached to the front end of the screw sleeve and the rear end of the butt joint sleeve.

[0017] As a further scheme of the utility model: the inner wall diameter of the rotating sleeve matches the outer diameter of the meter head, the outer side of the rotating sleeve is formed with an anti-skid line, and the front end of the rotating sleeve is formed with a folded edge attached to the front end surface of the meter head;

[0018] The inner diameter of the butt joint sleeve matches the outer diameter of the connecting pipe, and the outer wall polygon size of the butt joint sleeve matches the inner wall polygon size of the polygon sleeve;

[0019] The outer wall polygon sizes of the screw sleeve and the polygon sleeve are same.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] The installation assembly is arranged, the air pressure meter can be conveniently disassembled, compared with the traditional installation mode of directly rotating the screw sleeve, the rotating sleeve is close to the meter head, that is, the rotating sleeve is close to the opening of the gas-filled cabinet, the space where the rotating sleeve is located is larger, and smooth rotating operation can be realized, so that the disassembly convenience of the air pressure meter is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1It is a structure schematic view of the utility model;

[0023] Fig. 2 It is a structure schematic view of another view of the utility model;

[0024] Fig. 3 It is a structure sectional view of the installation assembly of the utility model;

[0025] Fig. 4 It is a sectional split view of the installation assembly of the utility model.

[0026] In the figure: 1, air pressure gauge; 101, gauge head; 102, connecting pipe; 2, installation assembly; 201, screw sleeve; 202, polygonal sleeve; 203, rotating sleeve; 204, butt joint sleeve; 205, limiting ring block; 206, spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figs. 1-4 In the embodiments of the utility model, a high-voltage power distribution cabinet pressure detection device comprises an air pressure gauge 1 composed of a gauge head 101 and a connecting pipe 102, the connecting pipe 102 is fixed to the middle part of the rear end of the gauge head 101, and the outer side of the gauge head 101 and the connecting pipe 102 is provided with an installation assembly 2, and the installation assembly 2 is used for realizing the installation and fixation of the air pressure gauge 1.

[0029] The installation assembly 2 comprises a connecting unit and a rotating unit.

[0030] The connecting unit is used for being connected with the air pressure detection port on the gas-filled cabinet, so as to realize the installation and fixation of the air pressure gauge 1.

[0031] The rotating unit is used for rotating at the position close to the gauge head 101 to provide the rotating force for the threaded connection of the connecting unit.

[0032] The connecting unit comprises a screw sleeve 201, the screw sleeve 201 is sleeved on the outer side of the rear end of the connecting pipe 102, after the rear end of the connecting pipe 102 is inserted into the inner side of the air pressure detection port on the gas-filled cabinet, the screw sleeve 201 is screwed with the external threaded part of the air pressure detection port on the gas-filled cabinet, so as to realize the fixation of the connecting pipe 102 and the air pressure detection port on the gas-filled cabinet.

[0033] The rotating unit comprises a polygonal sleeve 202, a rotating sleeve 203 and a butt joint sleeve 204.

[0034] The rotating sleeve 203 is sleeved on the outside of the gauge head 101, and the docking sleeve 204 is sleeved on the outside of the connecting pipe 102 and fixedly connected with the rotating sleeve 203.

[0035] The polygon sleeve 202 is fixed to the front end of the screw sleeve 201 and extends to the outside of the docking sleeve 204 and the spring 206.

[0036] The polygon sleeve 202, the screw sleeve 201 and the spring 206 are synchronously rotated by rotating the rotating sleeve 203 or the docking sleeve 204.

[0037] The spring 206 is distributed on the inside of the polygon sleeve 202 and sleeved on the outside of the connecting pipe 102, and the two ends of the spring 206 are respectively attached to the front end of the screw sleeve 201 and the rear end of the docking sleeve 204.

[0038] In the embodiment, when the air pressure gauge 1 is installed inside the air pressure cabinet, the operation method is as follows:

[0039] The rear end of the connecting pipe 102 is aligned with the air pressure detection port on the air pressure cabinet and inserted (it should be noted that the outside of the connecting pipe 102 is formed with an annular protrusion for attaching to the end face of the air pressure detection port), at this time, the screw sleeve 201 is attached to the rear end of the air pressure detection port under the elastic force of the spring 206.

[0040] Then, the rotating sleeve 203 is manually rotated to synchronously rotate the docking sleeve 204, and the polygon sleeve 202 and the screw sleeve 201 are synchronously rotated by the docking sleeve 204, so that the screw sleeve 201 is threadedly connected with the external threaded part of the air pressure detection port, in the process, the rotating polygon sleeve 202 and the screw sleeve 201 move to the air pressure detection port, and finally, the screw sleeve 201 is pressed against the annular protrusion on the connecting pipe 102, thereby completing the installation of the air pressure gauge 1.

[0041] If the annular protrusion needs to be disassembled, only the rotating sleeve 203 needs to be reversely rotated, compared with the traditional installation method of directly rotating the screw sleeve, the rotating sleeve 203 is close to the gauge head 101, that is, the rotating sleeve 203 is close to the opening of the air pressure cabinet, the space of the rotating sleeve 203 is larger, and smooth rotation operation can be realized, thereby further improving the disassembly convenience of the air pressure gauge 1.

[0042] Please refer to Figs. 2-4 The rotating unit further comprises a limiting ring block 205 fixed to the outside of the docking sleeve 204 and distributed at the front end of the polygon sleeve 202, and a space distance exists between the limiting ring block 205 and the rotating sleeve 203.

[0043] In the embodiment, the limiting ring block 205 can limit the movement of the polygon sleeve 202, and the tool can rotate the butt joint sleeve 204 during the disassembly and assembly of the air pressure gauge 1, the tool is clamped on the part of the butt joint sleeve 204 located in the middle region of the limiting ring block 205 and the rotating sleeve 203, and the limiting ring block 205 can make the tool and the polygon sleeve 202 not interfere with each other.

[0044] Please refer to Figs. 1-4 The inner wall diameter of the rotating sleeve 203 matches the outer diameter of the gauge head 101, the outer side of the rotating sleeve 203 is formed with anti-skid lines, and the front end of the rotating sleeve 203 is formed with a folded edge matched with the front end surface of the gauge head 101.

[0045] The inner side hole diameter of the butt joint sleeve 204 matches the outer diameter of the connecting pipe 102, and the outer wall polygon size of the butt joint sleeve 204 matches the inner wall polygon size of the polygon sleeve 202.

[0046] The outer wall polygon size of the screw sleeve 201 is the same as that of the polygon sleeve 202.

[0047] In the embodiment, the above structure can realize the stable rotation of the rotating sleeve 203 and the butt joint sleeve 204, and the butt joint sleeve 204 can provide limitation and guidance for the movement of the polygon sleeve 202.

[0048] In addition, the screw sleeve 201, the polygon sleeve 202, the butt joint sleeve 204 and the rotating sleeve 203 can realize the wrapping of the gauge head 101 and the connecting pipe 102, so as to realize the protection effect of the air pressure gauge 1.

[0049] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A high-voltage power distribution cabinet pressure detection device, comprising a gas pressure gauge (1) composed of a gauge head (101) and a connecting pipe (102), the connecting pipe (102) being fixed to the middle part of the rear end of the gauge head (101), characterized in that, The installation assembly (2) is arranged outside the connecting pipe (102) and the gauge head (101), and is used for fixing the installation of the air pressure gauge (1); The installation assembly (2) comprises a connecting unit and a rotating unit; The connecting unit is used for connecting with the air pressure detection port on the gassing cabinet, so as to realize the installation and fixation of the air pressure gauge (1); The rotating unit is used for rotating at a position close to the gauge head (101) to provide a rotating force for the threaded connection of the connecting unit.

2. The pressure detection device for high-voltage power distribution cabinet according to claim 1, characterized in that, The connecting unit comprises a screw sleeve (201), which is sleeved outside the rear end of the connecting pipe (102). After the rear end of the connecting pipe (102) is inserted into the inside of the air pressure detection port on the gassing cabinet, the screw sleeve (201) is screwed with the external threaded part of the air pressure detection port on the gassing cabinet, so as to fix the connecting pipe (102) and the air pressure detection port on the gassing cabinet.

3. The pressure detection device for high-voltage power distribution cabinet according to claim 2, characterized in that, The rotating unit comprises a polygon sleeve (202), a rotating sleeve (203) and a butt joint sleeve (204); The rotating sleeve (203) is limitingly sleeved outside the gauge head (101), and the butt joint sleeve (204) is sleeved outside the connecting pipe (102) and fixedly connected with the rotating sleeve (203); The polygon sleeve (202) is fixed to the front end of the screw sleeve (201) and extends outside the butt joint sleeve (204); The rotating sleeve (203) or the butt joint sleeve (204) is rotated to synchronously drive the polygon sleeve (202) and the screw sleeve (201) to rotate.

4. The pressure detection device for high-voltage power distribution cabinet according to claim 2, characterized in that, The rotating unit further comprises a limiting ring block (205), which is fixed outside the butt joint sleeve (204) and distributed at the front end of the polygon sleeve (202). There is a space interval between the limiting ring block (205) and the rotating sleeve (203).

5. The pressure detection device for high-voltage power distribution cabinet according to claim 2, characterized in that, The rotating unit further comprises a spring (206), which is distributed inside the polygon sleeve (202) and sleeved outside the connecting pipe (102). The two ends of the spring (206) are respectively attached to the front end of the screw sleeve (201) and the rear end of the butt joint sleeve (204).

6. The pressure detection device for high-voltage power distribution cabinet according to claim 3, characterized in that, The inner wall diameter of the rotating sleeve (203) matches the outer diameter of the gauge head (101). The outer side of the rotating sleeve (203) is formed with an anti-skid pattern. The front end of the rotating sleeve (203) is formed with a folded edge attached to the front end surface of the gauge head (101); The inner diameter of the butt joint sleeve (204) matches the outer diameter of the connecting pipe (102). The outer wall of the butt joint sleeve (204) is polygonal, and the inner wall of the polygon sleeve (202) is polygonal. The outer wall of the screw sleeve (201) and the polygon sleeve (202) is polygonal.

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